Heat sink ndi chipangizo choyatsira kutentha kuzinthu zamagetsi zamagetsi zomwe zimakhala ndi kutentha kwambiri pazida zamagetsi, zomwe zimapangidwa ndi mkuwa, mkuwa kapena mkuwa ngati mbale, pepala, zidutswa zingapo, etc., monga CPU central processing unit in. kompyuta kugwiritsa ntchito sinki yaikulu kutentha, chubu magetsi, mzere chubu mu TV, amplifier chubu mu amplifier ndi ntchito kutentha lakuya.